"no use strict";
;(function(window) {
if (typeof window.window != "undefined" && window.document) {
    return;
}

window.console = function() {
    var msgs = Array.prototype.slice.call(arguments, 0);
    postMessage({type: "log", data: msgs});
};
window.console.error =
window.console.warn = 
window.console.log =
window.console.trace = window.console;

window.window = window;
window.ace = window;

window.onerror = function(message, file, line, col, err) {
    postMessage({type: "error", data: {
        message: message,
        file: file,
        line: line, 
        col: col,
        stack: err.stack
    }});
};

window.normalizeModule = function(parentId, moduleName) {
    // normalize plugin requires
    if (moduleName.indexOf("!") !== -1) {
        var chunks = moduleName.split("!");
        return window.normalizeModule(parentId, chunks[0]) + "!" + window.normalizeModule(parentId, chunks[1]);
    }
    // normalize relative requires
    if (moduleName.charAt(0) == ".") {
        var base = parentId.split("/").slice(0, -1).join("/");
        moduleName = (base ? base + "/" : "") + moduleName;
        
        while(moduleName.indexOf(".") !== -1 && previous != moduleName) {
            var previous = moduleName;
            moduleName = moduleName.replace(/^\.\//, "").replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, "");
        }
    }
    
    return moduleName;
};

window.require = function(parentId, id) {
    if (!id) {
        id = parentId;
        parentId = null;
    }
    if (!id.charAt)
        throw new Error("worker.js require() accepts only (parentId, id) as arguments");

    id = window.normalizeModule(parentId, id);

    var module = window.require.modules[id];
    if (module) {
        if (!module.initialized) {
            module.initialized = true;
            module.exports = module.factory().exports;
        }
        return module.exports;
    }
    
    var chunks = id.split("/");
    if (!window.require.tlns)
        return console.log("unable to load " + id);
    chunks[0] = window.require.tlns[chunks[0]] || chunks[0];
    var path = chunks.join("/") + ".js";
    
    window.require.id = id;
    importScripts(path);
    return window.require(parentId, id);
};
window.require.modules = {};
window.require.tlns = {};

window.define = function(id, deps, factory) {
    if (arguments.length == 2) {
        factory = deps;
        if (typeof id != "string") {
            deps = id;
            id = window.require.id;
        }
    } else if (arguments.length == 1) {
        factory = id;
        deps = [];
        id = window.require.id;
    }
    
    if (typeof factory != "function") {
        window.require.modules[id] = {
            exports: factory,
            initialized: true
        };
        return;
    }

    if (!deps.length)
        // If there is no dependencies, we inject 'require', 'exports' and
        // 'module' as dependencies, to provide CommonJS compatibility.
        deps = ['require', 'exports', 'module'];

    var req = function(childId) {
        return window.require(id, childId);
    };

    window.require.modules[id] = {
        exports: {},
        factory: function() {
            var module = this;
            var returnExports = factory.apply(this, deps.map(function(dep) {
              switch(dep) {
                  // Because 'require', 'exports' and 'module' aren't actual
                  // dependencies, we must handle them seperately.
                  case 'require': return req;
                  case 'exports': return module.exports;
                  case 'module':  return module;
                  // But for all other dependencies, we can just go ahead and
                  // require them.
                  default:        return req(dep);
              }
            }));
            if (returnExports)
                module.exports = returnExports;
            return module;
        }
    };
};
window.define.amd = {};

window.initBaseUrls  = function initBaseUrls(topLevelNamespaces) {
    require.tlns = topLevelNamespaces;
};

window.initSender = function initSender() {

    var EventEmitter = window.require("ace/lib/event_emitter").EventEmitter;
    var oop = window.require("ace/lib/oop");
    
    var Sender = function() {};
    
    (function() {
        
        oop.implement(this, EventEmitter);
                
        this.callback = function(data, callbackId) {
            postMessage({
                type: "call",
                id: callbackId,
                data: data
            });
        };
    
        this.emit = function(name, data) {
            postMessage({
                type: "event",
                name: name,
                data: data
            });
        };
        
    }).call(Sender.prototype);
    
    return new Sender();
};

var main = window.main = null;
var sender = window.sender = null;

window.onmessage = function(e) {
    var msg = e.data;
    if (msg.command) {
        if (main[msg.command])
            main[msg.command].apply(main, msg.args);
        else
            throw new Error("Unknown command:" + msg.command);
    }
    else if (msg.init) {        
        initBaseUrls(msg.tlns);
        require("ace/lib/es5-shim");
        sender = window.sender = initSender();
        var clazz = require(msg.module)[msg.classname];
        main = window.main = new clazz(sender);
    } 
    else if (msg.event && sender) {
        sender._signal(msg.event, msg.data);
    }
};
})(this);

ace.define("ace/lib/oop",["require","exports","module"], function(require, exports, module) {
"use strict";

exports.inherits = function(ctor, superCtor) {
    ctor.super_ = superCtor;
    ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
            value: ctor,
            enumerable: false,
            writable: true,
            configurable: true
        }
    });
};

exports.mixin = function(obj, mixin) {
    for (var key in mixin) {
        obj[key] = mixin[key];
    }
    return obj;
};

exports.implement = function(proto, mixin) {
    exports.mixin(proto, mixin);
};

});

ace.define("ace/lib/lang",["require","exports","module"], function(require, exports, module) {
"use strict";

exports.last = function(a) {
    return a[a.length - 1];
};

exports.stringReverse = function(string) {
    return string.split("").reverse().join("");
};

exports.stringRepeat = function (string, count) {
    var result = '';
    while (count > 0) {
        if (count & 1)
            result += string;

        if (count >>= 1)
            string += string;
    }
    return result;
};

var trimBeginRegexp = /^\s\s*/;
var trimEndRegexp = /\s\s*$/;

exports.stringTrimLeft = function (string) {
    return string.replace(trimBeginRegexp, '');
};

exports.stringTrimRight = function (string) {
    return string.replace(trimEndRegexp, '');
};

exports.copyObject = function(obj) {
    var copy = {};
    for (var key in obj) {
        copy[key] = obj[key];
    }
    return copy;
};

exports.copyArray = function(array){
    var copy = [];
    for (var i=0, l=array.length; i<l; i++) {
        if (array[i] && typeof array[i] == "object")
            copy[i] = this.copyObject( array[i] );
        else 
            copy[i] = array[i];
    }
    return copy;
};

exports.deepCopy = function deepCopy(obj) {
    if (typeof obj !== "object" || !obj)
        return obj;
    var copy;
    if (Array.isArray(obj)) {
        copy = [];
        for (var key = 0; key < obj.length; key++) {
            copy[key] = deepCopy(obj[key]);
        }
        return copy;
    }
    var cons = obj.constructor;
    if (cons === RegExp)
        return obj;
    
    copy = cons();
    for (var key in obj) {
        copy[key] = deepCopy(obj[key]);
    }
    return copy;
};

exports.arrayToMap = function(arr) {
    var map = {};
    for (var i=0; i<arr.length; i++) {
        map[arr[i]] = 1;
    }
    return map;

};

exports.createMap = function(props) {
    var map = Object.create(null);
    for (var i in props) {
        map[i] = props[i];
    }
    return map;
};
exports.arrayRemove = function(array, value) {
  for (var i = 0; i <= array.length; i++) {
    if (value === array[i]) {
      array.splice(i, 1);
    }
  }
};

exports.escapeRegExp = function(str) {
    return str.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1');
};

exports.escapeHTML = function(str) {
    return str.replace(/&/g, "&#38;").replace(/"/g, "&#34;").replace(/'/g, "&#39;").replace(/</g, "&#60;");
};

exports.getMatchOffsets = function(string, regExp) {
    var matches = [];

    string.replace(regExp, function(str) {
        matches.push({
            offset: arguments[arguments.length-2],
            length: str.length
        });
    });

    return matches;
};
exports.deferredCall = function(fcn) {
    var timer = null;
    var callback = function() {
        timer = null;
        fcn();
    };

    var deferred = function(timeout) {
        deferred.cancel();
        timer = setTimeout(callback, timeout || 0);
        return deferred;
    };

    deferred.schedule = deferred;

    deferred.call = function() {
        this.cancel();
        fcn();
        return deferred;
    };

    deferred.cancel = function() {
        clearTimeout(timer);
        timer = null;
        return deferred;
    };
    
    deferred.isPending = function() {
        return timer;
    };

    return deferred;
};


exports.delayedCall = function(fcn, defaultTimeout) {
    var timer = null;
    var callback = function() {
        timer = null;
        fcn();
    };

    var _self = function(timeout) {
        if (timer == null)
            timer = setTimeout(callback, timeout || defaultTimeout);
    };

    _self.delay = function(timeout) {
        timer && clearTimeout(timer);
        timer = setTimeout(callback, timeout || defaultTimeout);
    };
    _self.schedule = _self;

    _self.call = function() {
        this.cancel();
        fcn();
    };

    _self.cancel = function() {
        timer && clearTimeout(timer);
        timer = null;
    };

    _self.isPending = function() {
        return timer;
    };

    return _self;
};
});

ace.define("ace/lib/event_emitter",["require","exports","module"], function(require, exports, module) {
"use strict";

var EventEmitter = {};
var stopPropagation = function() { this.propagationStopped = true; };
var preventDefault = function() { this.defaultPrevented = true; };

EventEmitter._emit =
EventEmitter._dispatchEvent = function(eventName, e) {
    this._eventRegistry || (this._eventRegistry = {});
    this._defaultHandlers || (this._defaultHandlers = {});

    var listeners = this._eventRegistry[eventName] || [];
    var defaultHandler = this._defaultHandlers[eventName];
    if (!listeners.length && !defaultHandler)
        return;

    if (typeof e != "object" || !e)
        e = {};

    if (!e.type)
        e.type = eventName;
    if (!e.stopPropagation)
        e.stopPropagation = stopPropagation;
    if (!e.preventDefault)
        e.preventDefault = preventDefault;

    listeners = listeners.slice();
    for (var i=0; i<listeners.length; i++) {
        listeners[i](e, this);
        if (e.propagationStopped)
            break;
    }
    
    if (defaultHandler && !e.defaultPrevented)
        return defaultHandler(e, this);
};


EventEmitter._signal = function(eventName, e) {
    var listeners = (this._eventRegistry || {})[eventName];
    if (!listeners)
        return;
    listeners = listeners.slice();
    for (var i=0; i<listeners.length; i++)
        listeners[i](e, this);
};

EventEmitter.once = function(eventName, callback) {
    var _self = this;
    callback && this.addEventListener(eventName, function newCallback() {
        _self.removeEventListener(eventName, newCallback);
        callback.apply(null, arguments);
    });
};


EventEmitter.setDefaultHandler = function(eventName, callback) {
    var handlers = this._defaultHandlers
    if (!handlers)
        handlers = this._defaultHandlers = {_disabled_: {}};
    
    if (handlers[eventName]) {
        var old = handlers[eventName];
        var disabled = handlers._disabled_[eventName];
        if (!disabled)
            handlers._disabled_[eventName] = disabled = [];
        disabled.push(old);
        var i = disabled.indexOf(callback);
        if (i != -1) 
            disabled.splice(i, 1);
    }
    handlers[eventName] = callback;
};
EventEmitter.removeDefaultHandler = function(eventName, callback) {
    var handlers = this._defaultHandlers
    if (!handlers)
        return;
    var disabled = handlers._disabled_[eventName];
    
    if (handlers[eventName] == callback) {
        var old = handlers[eventName];
        if (disabled)
            this.setDefaultHandler(eventName, disabled.pop());
    } else if (disabled) {
        var i = disabled.indexOf(callback);
        if (i != -1)
            disabled.splice(i, 1);
    }
};

EventEmitter.on =
EventEmitter.addEventListener = function(eventName, callback, capturing) {
    this._eventRegistry = this._eventRegistry || {};

    var listeners = this._eventRegistry[eventName];
    if (!listeners)
        listeners = this._eventRegistry[eventName] = [];

    if (listeners.indexOf(callback) == -1)
        listeners[capturing ? "unshift" : "push"](callback);
    return callback;
};

EventEmitter.off =
EventEmitter.removeListener =
EventEmitter.removeEventListener = function(eventName, callback) {
    this._eventRegistry = this._eventRegistry || {};

    var listeners = this._eventRegistry[eventName];
    if (!listeners)
        return;

    var index = listeners.indexOf(callback);
    if (index !== -1)
        listeners.splice(index, 1);
};

EventEmitter.removeAllListeners = function(eventName) {
    if (this._eventRegistry) this._eventRegistry[eventName] = [];
};

exports.EventEmitter = EventEmitter;

});

ace.define("ace/range",["require","exports","module"], function(require, exports, module) {
"use strict";
var comparePoints = function(p1, p2) {
    return p1.row - p2.row || p1.column - p2.column;
};
var Range = function(startRow, startColumn, endRow, endColumn) {
    this.start = {
        row: startRow,
        column: startColumn
    };

    this.end = {
        row: endRow,
        column: endColumn
    };
};

(function() {
    this.isEqual = function(range) {
        return this.start.row === range.start.row &&
            this.end.row === range.end.row &&
            this.start.column === range.start.column &&
            this.end.column === range.end.column;
    };
    this.toString = function() {
        return ("Range: [" + this.start.row + "/" + this.start.column +
            "] -> [" + this.end.row + "/" + this.end.column + "]");
    };

    this.contains = function(row, column) {
        return this.compare(row, column) == 0;
    };
    this.compareRange = function(range) {
        var cmp,
            end = range.end,
            start = range.start;

        cmp = this.compare(end.row, end.column);
        if (cmp == 1) {
            cmp = this.compare(start.row, start.column);
            if (cmp == 1) {
                return 2;
            } else if (cmp == 0) {
                return 1;
            } else {
                return 0;
            }
        } else if (cmp == -1) {
            return -2;
        } else {
            cmp = this.compare(start.row, start.column);
            if (cmp == -1) {
                return -1;
            } else if (cmp == 1) {
                return 42;
            } else {
                return 0;
            }
        }
    };
    this.comparePoint = function(p) {
        return this.compare(p.row, p.column);
    };
    this.containsRange = function(range) {
        return this.comparePoint(range.start) == 0 && this.comparePoint(range.end) == 0;
    };
    this.intersects = function(range) {
        var cmp = this.compareRange(range);
        return (cmp == -1 || cmp == 0 || cmp == 1);
    };
    this.isEnd = function(row, column) {
        return this.end.row == row && this.end.column == column;
    };
    this.isStart = function(row, column) {
        return this.start.row == row && this.start.column == column;
    };
    this.setStart = function(row, column) {
        if (typeof row == "object") {
            this.start.column = row.column;
            this.start.row = row.row;
        } else {
            this.start.row = row;
            this.start.column = column;
        }
    };
    this.setEnd = function(row, column) {
        if (typeof row == "object") {
            this.end.column = row.column;
            this.end.row = row.row;
        } else {
            this.end.row = row;
            this.end.column = column;
        }
    };
    this.inside = function(row, column) {
        if (this.compare(row, column) == 0) {
            if (this.isEnd(row, column) || this.isStart(row, column)) {
                return false;
            } else {
                return true;
            }
        }
        return false;
    };
    this.insideStart = function(row, column) {
        if (this.compare(row, column) == 0) {
            if (this.isEnd(row, column)) {
                return false;
            } else {
                return true;
            }
        }
        return false;
    };
    this.insideEnd = function(row, column) {
        if (this.compare(row, column) == 0) {
            if (this.isStart(row, column)) {
                return false;
            } else {
                return true;
            }
        }
        return false;
    };
    this.compare = function(row, column) {
        if (!this.isMultiLine()) {
            if (row === this.start.row) {
                return column < this.start.column ? -1 : (column > this.end.column ? 1 : 0);
            };
        }

        if (row < this.start.row)
            return -1;

        if (row > this.end.row)
            return 1;

        if (this.start.row === row)
            return column >= this.start.column ? 0 : -1;

        if (this.end.row === row)
            return column <= this.end.column ? 0 : 1;

        return 0;
    };
    this.compareStart = function(row, column) {
        if (this.start.row == row && this.start.column == column) {
            return -1;
        } else {
            return this.compare(row, column);
        }
    };
    this.compareEnd = function(row, column) {
        if (this.end.row == row && this.end.column == column) {
            return 1;
        } else {
            return this.compare(row, column);
        }
    };
    this.compareInside = function(row, column) {
        if (this.end.row == row && this.end.column == column) {
            return 1;
        } else if (this.start.row == row && this.start.column == column) {
            return -1;
        } else {
            return this.compare(row, column);
        }
    };
    this.clipRows = function(firstRow, lastRow) {
        if (this.end.row > lastRow)
            var end = {row: lastRow + 1, column: 0};
        else if (this.end.row < firstRow)
            var end = {row: firstRow, column: 0};

        if (this.start.row > lastRow)
            var start = {row: lastRow + 1, column: 0};
        else if (this.start.row < firstRow)
            var start = {row: firstRow, column: 0};

        return Range.fromPoints(start || this.start, end || this.end);
    };
    this.extend = function(row, column) {
        var cmp = this.compare(row, column);

        if (cmp == 0)
            return this;
        else if (cmp == -1)
            var start = {row: row, column: column};
        else
            var end = {row: row, column: column};

        return Range.fromPoints(start || this.start, end || this.end);
    };

    this.isEmpty = function() {
        return (this.start.row === this.end.row && this.start.column === this.end.column);
    };
    this.isMultiLine = function() {
        return (this.start.row !== this.end.row);
    };
    this.clone = function() {
        return Range.fromPoints(this.start, this.end);
    };
    this.collapseRows = function() {
        if (this.end.column == 0)
            return new Range(this.start.row, 0, Math.max(this.start.row, this.end.row-1), 0)
        else
            return new Range(this.start.row, 0, this.end.row, 0)
    };
    this.toScreenRange = function(session) {
        var screenPosStart = session.documentToScreenPosition(this.start);
        var screenPosEnd = session.documentToScreenPosition(this.end);

        return new Range(
            screenPosStart.row, screenPosStart.column,
            screenPosEnd.row, screenPosEnd.column
        );
    };
    this.moveBy = function(row, column) {
        this.start.row += row;
        this.start.column += column;
        this.end.row += row;
        this.end.column += column;
    };

}).call(Range.prototype);
Range.fromPoints = function(start, end) {
    return new Range(start.row, start.column, end.row, end.column);
};
Range.comparePoints = comparePoints;

Range.comparePoints = function(p1, p2) {
    return p1.row - p2.row || p1.column - p2.column;
};


exports.Range = Range;
});

ace.define("ace/anchor",["require","exports","module","ace/lib/oop","ace/lib/event_emitter"], function(require, exports, module) {
"use strict";

var oop = require("./lib/oop");
var EventEmitter = require("./lib/event_emitter").EventEmitter;

var Anchor = exports.Anchor = function(doc, row, column) {
    this.$onChange = this.onChange.bind(this);
    this.attach(doc);
    
    if (typeof column == "undefined")
        this.setPosition(row.row, row.column);
    else
        this.setPosition(row, column);
};

(function() {

    oop.implement(this, EventEmitter);
    this.getPosition = function() {
        return this.$clipPositionToDocument(this.row, this.column);
    };
    this.getDocument = function() {
        return this.document;
    };
    this.$insertRight = false;
    this.onChange = function(e) {
        var delta = e.data;
        var range = delta.range;

        if (range.start.row == range.end.row && range.start.row != this.row)
            return;

        if (range.start.row > this.row)
            return;

        if (range.start.row == this.row && range.start.column > this.column)
            return;

        var row = this.row;
        var column = this.column;
        var start = range.start;
        var end = range.end;

        if (delta.action === "insertText") {
            if (start.row === row && start.column <= column) {
                if (start.column === column && this.$insertRight) {
                } else if (start.row === end.row) {
                    column += end.column - start.column;
                } else {
                    column -= start.column;
                    row += end.row - start.row;
                }
            } else if (start.row !== end.row && start.row < row) {
                row += end.row - start.row;
            }
        } else if (delta.action === "insertLines") {
            if (start.row === row && column === 0 && this.$insertRight) {
            }
            else if (start.row <= row) {
                row += end.row - start.row;
            }
        } else if (delta.action === "removeText") {
            if (start.row === row && start.column < column) {
                if (end.column >= column)
                    column = start.column;
                else
                    column = Math.max(0, column - (end.column - start.column));

            } else if (start.row !== end.row && start.row < row) {
                if (end.row === row)
                    column = Math.max(0, column - end.column) + start.column;
                row -= (end.row - start.row);
            } else if (end.row === row) {
                row -= end.row - start.row;
                column = Math.max(0, column - end.column) + start.column;
            }
        } else if (delta.action == "removeLines") {
            if (start.row <= row) {
                if (end.row <= row)
                    row -= end.row - start.row;
                else {
                    row = start.row;
                    column = 0;
                }
            }
        }

        this.setPosition(row, column, true);
    };
    this.setPosition = function(row, column, noClip) {
        var pos;
        if (noClip) {
            pos = {
                row: row,
                column: column
            };
        } else {
            pos = this.$clipPositionToDocument(row, column);
        }

        if (this.row == pos.row && this.column == pos.column)
            return;

        var old = {
            row: this.row,
            column: this.column
        };

        this.row = pos.row;
        this.column = pos.column;
        this._signal("change", {
            old: old,
            value: pos
        });
    };
    this.detach = function() {
        this.document.removeEventListener("change", this.$onChange);
    };
    this.attach = function(doc) {
        this.document = doc || this.document;
        this.document.on("change", this.$onChange);
    };
    this.$clipPositionToDocument = function(row, column) {
        var pos = {};

        if (row >= this.document.getLength()) {
            pos.row = Math.max(0, this.document.getLength() - 1);
            pos.column = this.document.getLine(pos.row).length;
        }
        else if (row < 0) {
            pos.row = 0;
            pos.column = 0;
        }
        else {
            pos.row = row;
            pos.column = Math.min(this.document.getLine(pos.row).length, Math.max(0, column));
        }

        if (column < 0)
            pos.column = 0;

        return pos;
    };

}).call(Anchor.prototype);

});

ace.define("ace/document",["require","exports","module","ace/lib/oop","ace/lib/event_emitter","ace/range","ace/anchor"], function(require, exports, module) {
"use strict";

var oop = require("./lib/oop");
var EventEmitter = require("./lib/event_emitter").EventEmitter;
var Range = require("./range").Range;
var Anchor = require("./anchor").Anchor;

var Document = function(text) {
    this.$lines = [];
    if (text.length === 0) {
        this.$lines = [""];
    } else if (Array.isArray(text)) {
        this._insertLines(0, text);
    } else {
        this.insert({row: 0, column:0}, text);
    }
};

(function() {

    oop.implement(this, EventEmitter);
    this.setValue = function(text) {
        var len = this.getLength();
        this.remove(new Range(0, 0, len, this.getLine(len-1).length));
        this.insert({row: 0, column:0}, text);
    };
    this.getValue = function() {
        return this.getAllLines().join(this.getNewLineCharacter());
    };
    this.createAnchor = function(row, column) {
        return new Anchor(this, row, column);
    };
    if ("aaa".split(/a/).length === 0)
        this.$split = function(text) {
            return text.replace(/\r\n|\r/g, "\n").split("\n");
        };
    else
        this.$split = function(text) {
            return text.split(/\r\n|\r|\n/);
        };


    this.$detectNewLine = function(text) {
        var match = text.match(/^.*?(\r\n|\r|\n)/m);
        this.$autoNewLine = match ? match[1] : "\n";
        this._signal("changeNewLineMode");
    };
    this.getNewLineCharacter = function() {
        switch (this.$newLineMode) {
          case "windows":
            return "\r\n";
          case "unix":
            return "\n";
          default:
            return this.$autoNewLine || "\n";
        }
    };

    this.$autoNewLine = "";
    this.$newLineMode = "auto";
    this.setNewLineMode = function(newLineMode) {
        if (this.$newLineMode === newLineMode)
            return;

        this.$newLineMode = newLineMode;
        this._signal("changeNewLineMode");
    };
    this.getNewLineMode = function() {
        return this.$newLineMode;
    };
    this.isNewLine = function(text) {
        return (text == "\r\n" || text == "\r" || text == "\n");
    };
    this.getLine = function(row) {
        return this.$lines[row] || "";
    };
    this.getLines = function(firstRow, lastRow) {
        return this.$lines.slice(firstRow, lastRow + 1);
    };
    this.getAllLines = function() {
        return this.getLines(0, this.getLength());
    };
    this.getLength = function() {
        return this.$lines.length;
    };
    this.getTextRange = function(range) {
        if (range.start.row == range.end.row) {
            return this.getLine(range.start.row)
                .substring(range.start.column, range.end.column);
        }
        var lines = this.getLines(range.start.row, range.end.row);
        lines[0] = (lines[0] || "").substring(range.start.column);
        var l = lines.length - 1;
        if (range.end.row - range.start.row == l)
            lines[l] = lines[l].substring(0, range.end.column);
        return lines.join(this.getNewLineCharacter());
    };

    this.$clipPosition = function(position) {
        var length = this.getLength();
        if (position.row >= length) {
            position.row = Math.max(0, length - 1);
            position.column = this.getLine(length-1).length;
        } else if (position.row < 0)
            position.row = 0;
        return position;
    };
    this.insert = function(position, text) {
        if (!text || text.length === 0)
            return position;

        position = this.$clipPosition(position);
        if (this.getLength() <= 1)
            this.$detectNewLine(text);

        var lines = this.$split(text);
        var firstLine = lines.splice(0, 1)[0];
        var lastLine = lines.length == 0 ? null : lines.splice(lines.length - 1, 1)[0];

        position = this.insertInLine(position, firstLine);
        if (lastLine !== null) {
            position = this.insertNewLine(position); // terminate first line
            position = this._insertLines(position.row, lines);
            position = this.insertInLine(position, lastLine || "");
        }
        return position;
    };
    this.insertLines = function(row, lines) {
        if (row >= this.getLength())
            return this.insert({row: row, column: 0}, "\n" + lines.join("\n"));
        return this._insertLines(Math.max(row, 0), lines);
    };
    this._insertLines = function(row, lines) {
        if (lines.length == 0)
            return {row: row, column: 0};
        while (lines.length > 20000) {
            var end = this._insertLines(row, lines.slice(0, 20000));
            lines = lines.slice(20000);
            row = end.row;
        }

        var args = [row, 0];
        args.push.apply(args, lines);
        this.$lines.splice.apply(this.$lines, args);

        var range = new Range(row, 0, row + lines.length, 0);
        var delta = {
            action: "insertLines",
            range: range,
            lines: lines
        };
        this._signal("change", { data: delta });
        return range.end;
    };
    this.insertNewLine = function(position) {
        position = this.$clipPosition(position);
        var line = this.$lines[position.row] || "";

        this.$lines[position.row] = line.substring(0, position.column);
        this.$lines.splice(position.row + 1, 0, line.substring(position.column, line.length));

        var end = {
            row : position.row + 1,
            column : 0
        };

        var delta = {
            action: "insertText",
            range: Range.fromPoints(position, end),
            text: this.getNewLineCharacter()
        };
        this._signal("change", { data: delta });

        return end;
    };
    this.insertInLine = function(position, text) {
        if (text.length == 0)
            return position;

        var line = this.$lines[position.row] || "";

        this.$lines[position.row] = line.substring(0, position.column) + text
                + line.substring(position.column);

        var end = {
            row : position.row,
            column : position.column + text.length
        };

        var delta = {
            action: "insertText",
            range: Range.fromPoints(position, end),
            text: text
        };
        this._signal("change", { data: delta });

        return end;
    };
    this.remove = function(range) {
        if (!(range instanceof Range))
            range = Range.fromPoints(range.start, range.end);
        range.start = this.$clipPosition(range.start);
        range.end = this.$clipPosition(range.end);

        if (range.isEmpty())
            return range.start;

        var firstRow = range.start.row;
        var lastRow = range.end.row;

        if (range.isMultiLine()) {
            var firstFullRow = range.start.column == 0 ? firstRow : firstRow + 1;
            var lastFullRow = lastRow - 1;

            if (range.end.column > 0)
                this.removeInLine(lastRow, 0, range.end.column);

            if (lastFullRow >= firstFullRow)
                this._removeLines(firstFullRow, lastFullRow);

            if (firstFullRow != firstRow) {
                this.removeInLine(firstRow, range.start.column, this.getLine(firstRow).length);
                this.removeNewLine(range.start.row);
            }
        }
        else {
            this.removeInLine(firstRow, range.start.column, range.end.column);
        }
        return range.start;
    };
    this.removeInLine = function(row, startColumn, endColumn) {
        if (startColumn == endColumn)
            return;

        var range = new Range(row, startColumn, row, endColumn);
        var line = this.getLine(row);
        var removed = line.substring(startColumn, endColumn);
        var newLine = line.substring(0, startColumn) + line.substring(endColumn, line.length);
        this.$lines.splice(row, 1, newLine);

        var delta = {
            action: "removeText",
            range: range,
            text: removed
        };
        this._signal("change", { data: delta });
        return range.start;
    };
    this.removeLines = function(firstRow, lastRow) {
        if (firstRow < 0 || lastRow >= this.getLength())
            return this.remove(new Range(firstRow, 0, lastRow + 1, 0));
        return this._removeLines(firstRow, lastRow);
    };

    this._removeLines = function(firstRow, lastRow) {
        var range = new Range(firstRow, 0, lastRow + 1, 0);
        var removed = this.$lines.splice(firstRow, lastRow - firstRow + 1);

        var delta = {
            action: "removeLines",
            range: range,
            nl: this.getNewLineCharacter(),
            lines: removed
        };
        this._signal("change", { data: delta });
        return removed;
    };
    this.removeNewLine = function(row) {
        var firstLine = this.getLine(row);
        var secondLine = this.getLine(row+1);

        var range = new Range(row, firstLine.length, row+1, 0);
        var line = firstLine + secondLine;

        this.$lines.splice(row, 2, line);

        var delta = {
            action: "removeText",
            range: range,
            text: this.getNewLineCharacter()
        };
        this._signal("change", { data: delta });
    };
    this.replace = function(range, text) {
        if (!(range instanceof Range))
            range = Range.fromPoints(range.start, range.end);
        if (text.length == 0 && range.isEmpty())
            return range.start;
        if (text == this.getTextRange(range))
            return range.end;

        this.remove(range);
        if (text) {
            var end = this.insert(range.start, text);
        }
        else {
            end = range.start;
        }

        return end;
    };
    this.applyDeltas = function(deltas) {
        for (var i=0; i<deltas.length; i++) {
            var delta = deltas[i];
            var range = Range.fromPoints(delta.range.start, delta.range.end);

            if (delta.action == "insertLines")
                this.insertLines(range.start.row, delta.lines);
            else if (delta.action == "insertText")
                this.insert(range.start, delta.text);
            else if (delta.action == "removeLines")
                this._removeLines(range.start.row, range.end.row - 1);
            else if (delta.action == "removeText")
                this.remove(range);
        }
    };
    this.revertDeltas = function(deltas) {
        for (var i=deltas.length-1; i>=0; i--) {
            var delta = deltas[i];

            var range = Range.fromPoints(delta.range.start, delta.range.end);

            if (delta.action == "insertLines")
                this._removeLines(range.start.row, range.end.row - 1);
            else if (delta.action == "insertText")
                this.remove(range);
            else if (delta.action == "removeLines")
                this._insertLines(range.start.row, delta.lines);
            else if (delta.action == "removeText")
                this.insert(range.start, delta.text);
        }
    };
    this.indexToPosition = function(index, startRow) {
        var lines = this.$lines || this.getAllLines();
        var newlineLength = this.getNewLineCharacter().length;
        for (var i = startRow || 0, l = lines.length; i < l; i++) {
            index -= lines[i].length + newlineLength;
            if (index < 0)
                return {row: i, column: index + lines[i].length + newlineLength};
        }
        return {row: l-1, column: lines[l-1].length};
    };
    this.positionToIndex = function(pos, startRow) {
        var lines = this.$lines || this.getAllLines();
        var newlineLength = this.getNewLineCharacter().length;
        var index = 0;
        var row = Math.min(pos.row, lines.length);
        for (var i = startRow || 0; i < row; ++i)
            index += lines[i].length + newlineLength;

        return index + pos.column;
    };

}).call(Document.prototype);

exports.Document = Document;
});

ace.define("ace/worker/mirror",["require","exports","module","ace/document","ace/lib/lang"], function(require, exports, module) {
"use strict";

var Document = require("../document").Document;
var lang = require("../lib/lang");
    
var Mirror = exports.Mirror = function(sender) {
    this.sender = sender;
    var doc = this.doc = new Document("");
    
    var deferredUpdate = this.deferredUpdate = lang.delayedCall(this.onUpdate.bind(this));
    
    var _self = this;
    sender.on("change", function(e) {
        doc.applyDeltas(e.data);
        if (_self.$timeout)
            return deferredUpdate.schedule(_self.$timeout);
        _self.onUpdate();
    });
};

(function() {
    
    this.$timeout = 500;
    
    this.setTimeout = function(timeout) {
        this.$timeout = timeout;
    };
    
    this.setValue = function(value) {
        this.doc.setValue(value);
        this.deferredUpdate.schedule(this.$timeout);
    };
    
    this.getValue = function(callbackId) {
        this.sender.callback(this.doc.getValue(), callbackId);
    };
    
    this.onUpdate = function() {
    };
    
    this.isPending = function() {
        return this.deferredUpdate.isPending();
    };
    
}).call(Mirror.prototype);

});

ace.define("ace/mode/xml/sax",["require","exports","module"], function(require, exports, module) {
var nameStartChar = /[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]///\u10000-\uEFFFF
var nameChar = new RegExp("[\\-\\.0-9"+nameStartChar.source.slice(1,-1)+"\u00B7\u0300-\u036F\\ux203F-\u2040]");
var tagNamePattern = new RegExp('^'+nameStartChar.source+nameChar.source+'*(?:\:'+nameStartChar.source+nameChar.source+'*)?$');
var S_TAG = 0;//tag name offerring
var S_ATTR = 1;//attr name offerring 
var S_ATTR_S=2;//attr name end and space offer
var S_EQ = 3;//=space?
var S_V = 4;//attr value(no quot value only)
var S_E = 5;//attr value end and no space(quot end)
var S_S = 6;//(attr value end || tag end ) && (space offer)
var S_C = 7;//closed el<el />

function XMLReader(){
	
}

XMLReader.prototype = {
	parse:function(source,defaultNSMap,entityMap){
		var domBuilder = this.domBuilder;
		domBuilder.startDocument();
		_copy(defaultNSMap ,defaultNSMap = {})
		parse(source,defaultNSMap,entityMap,
				domBuilder,this.errorHandler);
		domBuilder.endDocument();
	}
}
function parse(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){
  function fixedFromCharCode(code) {
		if (code > 0xffff) {
			code -= 0x10000;
			var surrogate1 = 0xd800 + (code >> 10)
				, surrogate2 = 0xdc00 + (code & 0x3ff);

			return String.fromCharCode(surrogate1, surrogate2);
		} else {
			return String.fromCharCode(code);
		}
	}
	function entityReplacer(a){
		var k = a.slice(1,-1);
		if(k in entityMap){
			return entityMap[k]; 
		}else if(k.charAt(0) === '#'){
			return fixedFromCharCode(parseInt(k.substr(1).replace('x','0x')))
		}else{
			errorHandler.error('entity not found:'+a);
			return a;
		}
	}
	function appendText(end){//has some bugs
		var xt = source.substring(start,end).replace(/&#?\w+;/g,entityReplacer);
		locator&&position(start);
		domBuilder.characters(xt,0,end-start);
		start = end
	}
	function position(start,m){
		while(start>=endPos && (m = linePattern.exec(source))){
			startPos = m.index;
			endPos = startPos + m[0].length;
			locator.lineNumber++;
		}
		locator.columnNumber = start-startPos+1;
	}
	var startPos = 0;
	var endPos = 0;
	var linePattern = /.+(?:\r\n?|\n)|.*$/g
	var locator = domBuilder.locator;
	
	var parseStack = [{currentNSMap:defaultNSMapCopy}]
	var closeMap = {};
	var start = 0;
	while(true){
		var i = source.indexOf('<',start);
		if(i<0){
			if(!source.substr(start).match(/^\s*$/)){
				var doc = domBuilder.document;
    			var text = doc.createTextNode(source.substr(start));
    			doc.appendChild(text);
    			domBuilder.currentElement = text;
			}
			return;
		}
		if(i>start){
			appendText(i);
		}
		switch(source.charAt(i+1)){
		case '/':
			var end = source.indexOf('>',i+3);
			var tagName = source.substring(i+2,end);
			var config;
			if (parseStack.length > 1) {
				config = parseStack.pop();
			} else {
				errorHandler.fatalError("end tag name not found for: "+tagName);
				break;
			}
			var localNSMap = config.localNSMap;
			
	        if(config.tagName != tagName){
	            errorHandler.fatalError("end tag name: " + tagName + " does not match the current start tagName: "+config.tagName );
	        }
			domBuilder.endElement(config.uri,config.localName,tagName);
			if(localNSMap){
				for(var prefix in localNSMap){
					domBuilder.endPrefixMapping(prefix) ;
				}
			}
			end++;
			break;
		case '?':// <?...?>
			locator&&position(i);
			end = parseInstruction(source,i,domBuilder);
			break;
		case '!':// <!doctype,<![CDATA,<!--
			locator&&position(i);
			end = parseDCC(source,i,domBuilder,errorHandler);
			break;
		default:
			try{
				locator&&position(i);
				
				var el = new ElementAttributes();
				var end = parseElementStartPart(source,i,el,entityReplacer,errorHandler);
				var len = el.length;
				if(len && locator){
					var backup = copyLocator(locator,{});
					for(var i = 0;i<len;i++){
						var a = el[i];
						position(a.offset);
						a.offset = copyLocator(locator,{});
					}
					copyLocator(backup,locator);
				}
				if(!el.closed && fixSelfClosed(source,end,el.tagName,closeMap)){
					el.closed = true;
					if(!entityMap.nbsp){
						errorHandler.warning('unclosed xml attribute');
					}
				}
				appendElement(el,domBuilder,parseStack);
				
				
				if(el.uri === 'http://www.w3.org/1999/xhtml' && !el.closed){
					end = parseHtmlSpecialContent(source,end,el.tagName,entityReplacer,domBuilder)
				}else{
					end++;
				}
			}catch(e){
				errorHandler.error('element parse error: '+e);
				end = -1;
			}

		}
		if(end<0){
			appendText(i+1);
		}else{
			start = end;
		}
	}
}
function copyLocator(f,t){
	t.lineNumber = f.lineNumber;
	t.columnNumber = f.columnNumber;
	return t;
	
}
function parseElementStartPart(source,start,el,entityReplacer,errorHandler){
	var attrName;
	var value;
	var p = ++start;
	var s = S_TAG;//status
	while(true){
		var c = source.charAt(p);
		switch(c){
		case '=':
			if(s === S_ATTR){//attrName
				attrName = source.slice(start,p);
				s = S_EQ;
			}else if(s === S_ATTR_S){
				s = S_EQ;
			}else{
				throw new Error('attribute equal must after attrName');
			}
			break;
		case '\'':
		case '"':
			if(s === S_EQ){//equal
				start = p+1;
				p = source.indexOf(c,start)
				if(p>0){
					value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer);
					el.add(attrName,value,start-1);
					s = S_E;
				}else{
					throw new Error('attribute value no end \''+c+'\' match');
				}
			}else if(s == S_V){
				value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer);
				el.add(attrName,value,start);
				errorHandler.warning('attribute "'+attrName+'" missed start quot('+c+')!!');
				start = p+1;
				s = S_E
			}else{
				throw new Error('attribute value must after "="');
			}
			break;
		case '/':
			switch(s){
			case S_TAG:
				el.setTagName(source.slice(start,p));
			case S_E:
			case S_S:
			case S_C:
				s = S_C;
				el.closed = true;
			case S_V:
			case S_ATTR:
			case S_ATTR_S:
				break;
			default:
				throw new Error("attribute invalid close char('/')")
			}
			break;
		case ''://end document
			errorHandler.error('unexpected end of input');
		case '>':
			switch(s){
			case S_TAG:
				el.setTagName(source.slice(start,p));
			case S_E:
			case S_S:
			case S_C:
				break;//normal
			case S_V://Compatible state
			case S_ATTR:
				value = source.slice(start,p);
				if(value.slice(-1) === '/'){
					el.closed  = true;
					value = value.slice(0,-1)
				}
			case S_ATTR_S:
				if(s === S_ATTR_S){
					value = attrName;
				}
				if(s == S_V){
					errorHandler.warning('attribute "'+value+'" missed quot(")!!');
					el.add(attrName,value.replace(/&#?\w+;/g,entityReplacer),start)
				}else{
					errorHandler.warning('attribute "'+value+'" missed value!! "'+value+'" instead!!')
					el.add(value,value,start)
				}
				break;
			case S_EQ:
				throw new Error('attribute value missed!!');
			}
			return p;
		case '\u0080':
			c = ' ';
		default:
			if(c<= ' '){//space
				switch(s){
				case S_TAG:
					el.setTagName(source.slice(start,p));//tagName
					s = S_S;
					break;
				case S_ATTR:
					attrName = source.slice(start,p)
					s = S_ATTR_S;
					break;
				case S_V:
					var value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer);
					errorHandler.warning('attribute "'+value+'" missed quot(")!!');
					el.add(attrName,value,start)
				case S_E:
					s = S_S;
					break;
				}
			}else{//not space
				switch(s){
				case S_ATTR_S:
					errorHandler.warning('attribute "'+attrName+'" missed value!! "'+attrName+'" instead!!')
					el.add(attrName,attrName,start);
					start = p;
					s = S_ATTR;
					break;
				case S_E:
					errorHandler.warning('attribute space is required"'+attrName+'"!!')
				case S_S:
					s = S_ATTR;
					start = p;
					break;
				case S_EQ:
					s = S_V;
					start = p;
					break;
				case S_C:
					throw new Error("elements closed character '/' and '>' must be connected to");
				}
			}
		}
		p++;
	}
}
function appendElement(el,domBuilder,parseStack){
	var tagName = el.tagName;
	var localNSMap = null;
	var currentNSMap = parseStack[parseStack.length-1].currentNSMap;
	var i = el.length;
	while(i--){
		var a = el[i];
		var qName = a.qName;
		var value = a.value;
		var nsp = qName.indexOf(':');
		if(nsp>0){
			var prefix = a.prefix = qName.slice(0,nsp);
			var localName = qName.slice(nsp+1);
			var nsPrefix = prefix === 'xmlns' && localName
		}else{
			localName = qName;
			prefix = null
			nsPrefix = qName === 'xmlns' && ''
		}
		a.localName = localName ;
		if(nsPrefix !== false){//hack!!
			if(localNSMap == null){
				localNSMap = {}
				_copy(currentNSMap,currentNSMap={})
			}
			currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;
			a.uri = 'http://www.w3.org/2000/xmlns/'
			domBuilder.startPrefixMapping(nsPrefix, value) 
		}
	}
	var i = el.length;
	while(i--){
		a = el[i];
		var prefix = a.prefix;
		if(prefix){//no prefix attribute has no namespace
			if(prefix === 'xml'){
				a.uri = 'http://www.w3.org/XML/1998/namespace';
			}if(prefix !== 'xmlns'){
				a.uri = currentNSMap[prefix]
			}
		}
	}
	var nsp = tagName.indexOf(':');
	if(nsp>0){
		prefix = el.prefix = tagName.slice(0,nsp);
		localName = el.localName = tagName.slice(nsp+1);
	}else{
		prefix = null;//important!!
		localName = el.localName = tagName;
	}
	var ns = el.uri = currentNSMap[prefix || ''];
	domBuilder.startElement(ns,localName,tagName,el);
	if(el.closed){
		domBuilder.endElement(ns,localName,tagName);
		if(localNSMap){
			for(prefix in localNSMap){
				domBuilder.endPrefixMapping(prefix) 
			}
		}
	}else{
		el.currentNSMap = currentNSMap;
		el.localNSMap = localNSMap;
		parseStack.push(el);
	}
}
function parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){
	if(/^(?:script|textarea)$/i.test(tagName)){
		var elEndStart =  source.indexOf('</'+tagName+'>',elStartEnd);
		var text = source.substring(elStartEnd+1,elEndStart);
		if(/[&<]/.test(text)){
			if(/^script$/i.test(tagName)){
					domBuilder.characters(text,0,text.length);
					return elEndStart;
			}//}else{//text area
				text = text.replace(/&#?\w+;/g,entityReplacer);
				domBuilder.characters(text,0,text.length);
				return elEndStart;
			
		}
	}
	return elStartEnd+1;
}
function fixSelfClosed(source,elStartEnd,tagName,closeMap){
	var pos = closeMap[tagName];
	if(pos == null){
		pos = closeMap[tagName] = source.lastIndexOf('</'+tagName+'>')
	}
	return pos<elStartEnd;
}
function _copy(source,target){
	for(var n in source){target[n] = source[n]}
}
function parseDCC(source,start,domBuilder,errorHandler){//sure start with '<!'
	var next= source.charAt(start+2)
	switch(next){
	case '-':
		if(source.charAt(start + 3) === '-'){
			var end = source.indexOf('-->',start+4);
			if(end>start){
				domBuilder.comment(source,start+4,end-start-4);
				return end+3;
			}else{
				errorHandler.error("Unclosed comment");
				return -1;
			}
		}else{
			return -1;
		}
	default:
		if(source.substr(start+3,6) == 'CDATA['){
			var end = source.indexOf(']]>',start+9);
			domBuilder.startCDATA();
			domBuilder.characters(source,start+9,end-start-9);
			domBuilder.endCDATA() 
			return end+3;
		}
		var matchs = split(source,start);
		var len = matchs.length;
		if(len>1 && /!doctype/i.test(matchs[0][0])){
			var name = matchs[1][0];
			var pubid = len>3 && /^public$/i.test(matchs[2][0]) && matchs[3][0]
			var sysid = len>4 && matchs[4][0];
			var lastMatch = matchs[len-1]
			domBuilder.startDTD(name,pubid && pubid.replace(/^(['"])(.*?)\1$/,'$2'),
					sysid && sysid.replace(/^(['"])(.*?)\1$/,'$2'));
			domBuilder.endDTD();
			
			return lastMatch.index+lastMatch[0].length
		}
	}
	return -1;
}



function parseInstruction(source,start,domBuilder){
	var end = source.indexOf('?>',start);
	if(end){
		var match = source.substring(start,end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);
		if(match){
			var len = match[0].length;
			domBuilder.processingInstruction(match[1], match[2]) ;
			return end+2;
		}else{//error
			return -1;
		}
	}
	return -1;
}
function ElementAttributes(source){
	
}
ElementAttributes.prototype = {
	setTagName:function(tagName){
		if(!tagNamePattern.test(tagName)){
			throw new Error('invalid tagName:'+tagName)
		}
		this.tagName = tagName
	},
	add:function(qName,value,offset){
		if(!tagNamePattern.test(qName)){
			throw new Error('invalid attribute:'+qName)
		}
		this[this.length++] = {qName:qName,value:value,offset:offset}
	},
	length:0,
	getLocalName:function(i){return this[i].localName},
	getOffset:function(i){return this[i].offset},
	getQName:function(i){return this[i].qName},
	getURI:function(i){return this[i].uri},
	getValue:function(i){return this[i].value}
}




function _set_proto_(thiz,parent){
	thiz.__proto__ = parent;
	return thiz;
}
if(!(_set_proto_({},_set_proto_.prototype) instanceof _set_proto_)){
	_set_proto_ = function(thiz,parent){
		function p(){};
		p.prototype = parent;
		p = new p();
		for(parent in thiz){
			p[parent] = thiz[parent];
		}
		return p;
	}
}

function split(source,start){
	var match;
	var buf = [];
	var reg = /'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;
	reg.lastIndex = start;
	reg.exec(source);//skip <
	while(match = reg.exec(source)){
		buf.push(match);
		if(match[1])return buf;
	}
}

return XMLReader;
});

ace.define("ace/mode/xml/dom",["require","exports","module"], function(require, exports, module) {

function copy(src,dest){
	for(var p in src){
		dest[p] = src[p];
	}
}
function _extends(Class,Super){
	var pt = Class.prototype;
	if(Object.create){
		var ppt = Object.create(Super.prototype)
		pt.__proto__ = ppt;
	}
	if(!(pt instanceof Super)){
		function t(){};
		t.prototype = Super.prototype;
		t = new t();
		copy(pt,t);
		Class.prototype = pt = t;
	}
	if(pt.constructor != Class){
		if(typeof Class != 'function'){
			console.error("unknow Class:"+Class)
		}
		pt.constructor = Class
	}
}
var htmlns = 'http://www.w3.org/1999/xhtml' ;
var NodeType = {}
var ELEMENT_NODE                = NodeType.ELEMENT_NODE                = 1;
var ATTRIBUTE_NODE              = NodeType.ATTRIBUTE_NODE              = 2;
var TEXT_NODE                   = NodeType.TEXT_NODE                   = 3;
var CDATA_SECTION_NODE          = NodeType.CDATA_SECTION_NODE          = 4;
var ENTITY_REFERENCE_NODE       = NodeType.ENTITY_REFERENCE_NODE       = 5;
var ENTITY_NODE                 = NodeType.ENTITY_NODE                 = 6;
var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;
var COMMENT_NODE                = NodeType.COMMENT_NODE                = 8;
var DOCUMENT_NODE               = NodeType.DOCUMENT_NODE               = 9;
var DOCUMENT_TYPE_NODE          = NodeType.DOCUMENT_TYPE_NODE          = 10;
var DOCUMENT_FRAGMENT_NODE      = NodeType.DOCUMENT_FRAGMENT_NODE      = 11;
var NOTATION_NODE               = NodeType.NOTATION_NODE               = 12;
var ExceptionCode = {}
var ExceptionMessage = {};
var INDEX_SIZE_ERR              = ExceptionCode.INDEX_SIZE_ERR              = ((ExceptionMessage[1]="Index size error"),1);
var DOMSTRING_SIZE_ERR          = ExceptionCode.DOMSTRING_SIZE_ERR          = ((ExceptionMessage[2]="DOMString size error"),2);
var HIERARCHY_REQUEST_ERR       = ExceptionCode.HIERARCHY_REQUEST_ERR       = ((ExceptionMessage[3]="Hierarchy request error"),3);
var WRONG_DOCUMENT_ERR          = ExceptionCode.WRONG_DOCUMENT_ERR          = ((ExceptionMessage[4]="Wrong document"),4);
var INVALID_CHARACTER_ERR       = ExceptionCode.INVALID_CHARACTER_ERR       = ((ExceptionMessage[5]="Invalid character"),5);
var NO_DATA_ALLOWED_ERR         = ExceptionCode.NO_DATA_ALLOWED_ERR         = ((ExceptionMessage[6]="No data allowed"),6);
var NO_MODIFICATION_ALLOWED_ERR = ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = ((ExceptionMessage[7]="No modification allowed"),7);
var NOT_FOUND_ERR               = ExceptionCode.NOT_FOUND_ERR               = ((ExceptionMessage[8]="Not found"),8);
var NOT_SUPPORTED_ERR           = ExceptionCode.NOT_SUPPORTED_ERR           = ((ExceptionMessage[9]="Not supported"),9);
var INUSE_ATTRIBUTE_ERR         = ExceptionCode.INUSE_ATTRIBUTE_ERR         = ((ExceptionMessage[10]="Attribute in use"),10);
var INVALID_STATE_ERR        	= ExceptionCode.INVALID_STATE_ERR        	= ((ExceptionMessage[11]="Invalid state"),11);
var SYNTAX_ERR               	= ExceptionCode.SYNTAX_ERR               	= ((ExceptionMessage[12]="Syntax error"),12);
var INVALID_MODIFICATION_ERR 	= ExceptionCode.INVALID_MODIFICATION_ERR 	= ((ExceptionMessage[13]="Invalid modification"),13);
var NAMESPACE_ERR            	= ExceptionCode.NAMESPACE_ERR           	= ((ExceptionMessage[14]="Invalid namespace"),14);
var INVALID_ACCESS_ERR       	= ExceptionCode.INVALID_ACCESS_ERR      	= ((ExceptionMessage[15]="Invalid access"),15);


function DOMException(code, message) {
	if(message instanceof Error){
		var error = message;
	}else{
		error = this;
		Error.call(this, ExceptionMessage[code]);
		this.message = ExceptionMessage[code];
		if(Error.captureStackTrace) Error.captureStackTrace(this, DOMException);
	}
	error.code = code;
	if(message) this.message = this.message + ": " + message;
	return error;
};
DOMException.prototype = Error.prototype;
copy(ExceptionCode,DOMException)
function NodeList() {
};
NodeList.prototype = {
	length:0, 
	item: function(index) {
		return this[index] || null;
	}
};
function LiveNodeList(node,refresh){
	this._node = node;
	this._refresh = refresh
	_updateLiveList(this);
}
function _updateLiveList(list){
	var inc = list._node._inc || list._node.ownerDocument._inc;
	if(list._inc != inc){
		var ls = list._refresh(list._node);
		__set__(list,'length',ls.length);
		copy(ls,list);
		list._inc = inc;
	}
}
LiveNodeList.prototype.item = function(i){
	_updateLiveList(this);
	return this[i];
}

_extends(LiveNodeList,NodeList);
function NamedNodeMap() {
};

function _findNodeIndex(list,node){
	var i = list.length;
	while(i--){
		if(list[i] === node){return i}
	}
}

function _addNamedNode(el,list,newAttr,oldAttr){
	if(oldAttr){
		list[_findNodeIndex(list,oldAttr)] = newAttr;
	}else{
		list[list.length++] = newAttr;
	}
	if(el){
		newAttr.ownerElement = el;
		var doc = el.ownerDocument;
		if(doc){
			oldAttr && _onRemoveAttribute(doc,el,oldAttr);
			_onAddAttribute(doc,el,newAttr);
		}
	}
}
function _removeNamedNode(el,list,attr){
	var i = _findNodeIndex(list,attr);
	if(i>=0){
		var lastIndex = list.length-1
		while(i<lastIndex){
			list[i] = list[++i]
		}
		list.length = lastIndex;
		if(el){
			var doc = el.ownerDocument;
			if(doc){
				_onRemoveAttribute(doc,el,attr);
				attr.ownerElement = null;
			}
		}
	}else{
		throw DOMException(NOT_FOUND_ERR,new Error())
	}
}
NamedNodeMap.prototype = {
	length:0,
	item:NodeList.prototype.item,
	getNamedItem: function(key) {
		var i = this.length;
		while(i--){
			var attr = this[i];
			if(attr.nodeName == key){
				return attr;
			}
		}
	},
	setNamedItem: function(attr) {
		var el = attr.ownerElement;
		if(el && el!=this._ownerElement){
			throw new DOMException(INUSE_ATTRIBUTE_ERR);
		}
		var oldAttr = this.getNamedItem(attr.nodeName);
		_addNamedNode(this._ownerElement,this,attr,oldAttr);
		return oldAttr;
	},
	setNamedItemNS: function(attr) {// raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR
		var el = attr.ownerElement, oldAttr;
		if(el && el!=this._ownerElement){
			throw new DOMException(INUSE_ATTRIBUTE_ERR);
		}
		oldAttr = this.getNamedItemNS(attr.namespaceURI,attr.localName);
		_addNamedNode(this._ownerElement,this,attr,oldAttr);
		return oldAttr;
	},
	removeNamedItem: function(key) {
		var attr = this.getNamedItem(key);
		_removeNamedNode(this._ownerElement,this,attr);
		return attr;
		
		
	},// raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR
	removeNamedItemNS:function(namespaceURI,localName){
		var attr = this.getNamedItemNS(namespaceURI,localName);
		_removeNamedNode(this._ownerElement,this,attr);
		return attr;
	},
	getNamedItemNS: function(namespaceURI, localName) {
		var i = this.length;
		while(i--){
			var node = this[i];
			if(node.localName == localName && node.namespaceURI == namespaceURI){
				return node;
			}
		}
		return null;
	}
};
function DOMImplementation(/* Object */ features) {
	this._features = {};
	if (features) {
		for (var feature in features) {
			 this._features = features[feature];
		}
	}
};

DOMImplementation.prototype = {
	hasFeature: function(/* string */ feature, /* string */ version) {
		var versions = this._features[feature.toLowerCase()];
		if (versions && (!version || version in versions)) {
			return true;
		} else {
			return false;
		}
	},
	createDocument:function(namespaceURI,  qualifiedName, doctype){// raises:INVALID_CHARACTER_ERR,NAMESPACE_ERR,WRONG_DOCUMENT_ERR
		var doc = new Document();
		doc.implementation = this;
		doc.childNodes = new NodeList();
		doc.doctype = doctype;
		if(doctype){
			doc.appendChild(doctype);
		}
		if(qualifiedName){
			var root = doc.createElementNS(namespaceURI,qualifiedName);
			doc.appendChild(root);
		}
		return doc;
	},
	createDocumentType:function(qualifiedName, publicId, systemId){// raises:INVALID_CHARACTER_ERR,NAMESPACE_ERR
		var node = new DocumentType();
		node.name = qualifiedName;
		node.nodeName = qualifiedName;
		node.publicId = publicId;
		node.systemId = systemId;
		return node;
	}
};

function Node() {
};

Node.prototype = {
	firstChild : null,
	lastChild : null,
	previousSibling : null,
	nextSibling : null,
	attributes : null,
	parentNode : null,
	childNodes : null,
	ownerDocument : null,
	nodeValue : null,
	namespaceURI : null,
	prefix : null,
	localName : null,
	insertBefore:function(newChild, refChild){//raises 
		return _insertBefore(this,newChild,refChild);
	},
	replaceChild:function(newChild, oldChild){//raises 
		this.insertBefore(newChild,oldChild);
		if(oldChild){
			this.removeChild(oldChild);
		}
	},
	removeChild:function(oldChild){
		return _removeChild(this,oldChild);
	},
	appendChild:function(newChild){
		return this.insertBefore(newChild,null);
	},
	hasChildNodes:function(){
		return this.firstChild != null;
	},
	cloneNode:function(deep){
		return cloneNode(this.ownerDocument||this,this,deep);
	},
	normalize:function(){
		var child = this.firstChild;
		while(child){
			var next = child.nextSibling;
			if(next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE){
				this.removeChild(next);
				child.appendData(next.data);
			}else{
				child.normalize();
				child = next;
			}
		}
	},
	isSupported:function(feature, version){
		return this.ownerDocument.implementation.hasFeature(feature,version);
	},
    hasAttributes:function(){
    	return this.attributes.length>0;
    },
    lookupPrefix:function(namespaceURI){
    	var el = this;
    	while(el){
    		var map = el._nsMap;
    		if(map){
    			for(var n in map){
    				if(map[n] == namespaceURI){
    					return n;
    				}
    			}
    		}
    		el = el.nodeType == 2?el.ownerDocument : el.parentNode;
    	}
    	return null;
    },
    lookupNamespaceURI:function(prefix){
    	var el = this;
    	while(el){
    		var map = el._nsMap;
    		if(map){
    			if(prefix in map){
    				return map[prefix] ;
    			}
    		}
    		el = el.nodeType == 2?el.ownerDocument : el.parentNode;
    	}
    	return null;
    },
    isDefaultNamespace:function(namespaceURI){
    	var prefix = this.lookupPrefix(namespaceURI);
    	return prefix == null;
    }
};


function _xmlEncoder(c){
	return c == '<' && '&lt;' ||
         c == '>' && '&gt;' ||
         c == '&' && '&amp;' ||
         c == '"' && '&quot;' ||
         '&#'+c.charCodeAt()+';'
}


copy(NodeType,Node);
copy(NodeType,Node.prototype);
function _visitNode(node,callback){
	if(callback(node)){
		return true;
	}
	if(node = node.firstChild){
		do{
			if(_visitNode(node,callback)){return true}
        }while(node=node.nextSibling)
    }
}



function Document(){
}
function _onAddAttribute(doc,el,newAttr){
	doc && doc._inc++;
	var ns = newAttr.namespaceURI ;
	if(ns == 'http://www.w3.org/2000/xmlns/'){
		el._nsMap[newAttr.prefix?newAttr.localName:''] = newAttr.value
	}
}
function _onRemoveAttribute(doc,el,newAttr,remove){
	doc && doc._inc++;
	var ns = newAttr.namespaceURI ;
	if(ns == 'http://www.w3.org/2000/xmlns/'){
		delete el._nsMap[newAttr.prefix?newAttr.localName:'']
	}
}
function _onUpdateChild(doc,el,newChild){
	if(doc && doc._inc){
		doc._inc++;
		var cs = el.childNodes;
		if(newChild){
			cs[cs.length++] = newChild;
		}else{
			var child = el.firstChild;
			var i = 0;
			while(child){
				cs[i++] = child;
				child =child.nextSibling;
			}
			cs.length = i;
		}
	}
}
function _removeChild(parentNode,child){
	var previous = child.previousSibling;
	var next = child.nextSibling;
	if(previous){
		previous.nextSibling = next;
	}else{
		parentNode.firstChild = next
	}
	if(next){
		next.previousSibling = previous;
	}else{
		parentNode.lastChild = previous;
	}
	_onUpdateChild(parentNode.ownerDocument,parentNode);
	return child;
}
function _insertBefore(parentNode,newChild,nextChild){
	var cp = newChild.parentNode;
	if(cp){
		cp.removeChild(newChild);//remove and update
	}
	if(newChild.nodeType === DOCUMENT_FRAGMENT_NODE){
		var newFirst = newChild.firstChild;
		if (newFirst == null) {
			return newChild;
		}
		var newLast = newChild.lastChild;
	}else{
		newFirst = newLast = newChild;
	}
	var pre = nextChild ? nextChild.previousSibling : parentNode.lastChild;

	newFirst.previousSibling = pre;
	newLast.nextSibling = nextChild;
	
	
	if(pre){
		pre.nextSibling = newFirst;
	}else{
		parentNode.firstChild = newFirst;
	}
	if(nextChild == null){
		parentNode.lastChild = newLast;
	}else{
		nextChild.previousSibling = newLast;
	}
	do{
		newFirst.parentNode = parentNode;
	}while(newFirst !== newLast && (newFirst= newFirst.nextSibling))
	_onUpdateChild(parentNode.ownerDocument||parentNode,parentNode);
	if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {
		newChild.firstChild = newChild.lastChild = null;
	}
	return newChild;
}
function _appendSingleChild(parentNode,newChild){
	var cp = newChild.parentNode;
	if(cp){
		var pre = parentNode.lastChild;
		cp.removeChild(newChild);//remove and update
		var pre = parentNode.lastChild;
	}
	var pre = parentNode.lastChild;
	newChild.parentNode = parentNode;
	newChild.previousSibling = pre;
	newChild.nextSibling = null;
	if(pre){
		pre.nextSibling = newChild;
	}else{
		parentNode.firstChild = newChild;
	}
	parentNode.lastChild = newChild;
	_onUpdateChild(parentNode.ownerDocument,parentNode,newChild);
	return newChild;
}
Document.prototype = {
	nodeName :  '#document',
	nodeType :  DOCUMENT_NODE,
	doctype :  null,
	documentElement :  null,
	_inc : 1,
	
	insertBefore :  function(newChild, refChild){//raises 
		if(newChild.nodeType == DOCUMENT_FRAGMENT_NODE){
			var child = newChild.firstChild;
			while(child){
				var next = child.nextSibling;
				this.insertBefore(child,refChild);
				child = next;
			}
			return newChild;
		}
		if(this.documentElement == null && newChild.nodeType == 1){
			this.documentElement = newChild;
		}
		
		return _insertBefore(this,newChild,refChild),(newChild.ownerDocument = this),newChild;
	},
	removeChild :  function(oldChild){
		if(this.documentElement == oldChild){
			this.documentElement = null;
		}
		return _removeChild(this,oldChild);
	},
	importNode : function(importedNode,deep){
		return importNode(this,importedNode,deep);
	},
	getElementById :	function(id){
		var rtv = null;
		_visitNode(this.documentElement,function(node){
			if(node.nodeType == 1){
				if(node.getAttribute('id') == id){
					rtv = node;
					return true;
				}
			}
		})
		return rtv;
	},
	createElement :	function(tagName){
		var node = new Element();
		node.ownerDocument = this;
		node.nodeName = tagName;
		node.tagName = tagName;
		node.childNodes = new NodeList();
		var attrs	= node.attributes = new NamedNodeMap();
		attrs._ownerElement = node;
		return node;
	},
	createDocumentFragment :	function(){
		var node = new DocumentFragment();
		node.ownerDocument = this;
		node.childNodes = new NodeList();
		return node;
	},
	createTextNode :	function(data){
		var node = new Text();
		node.ownerDocument = this;
		node.appendData(data)
		return node;
	},
	createComment :	function(data){
		var node = new Comment();
		node.ownerDocument = this;
		node.appendData(data)
		return node;
	},
	createCDATASection :	function(data){
		var node = new CDATASection();
		node.ownerDocument = this;
		node.appendData(data)
		return node;
	},
	createProcessingInstruction :	function(target,data){
		var node = new ProcessingInstruction();
		node.ownerDocument = this;
		node.tagName = node.target = target;
		node.nodeValue= node.data = data;
		return node;
	},
	createAttribute :	function(name){
		var node = new Attr();
		node.ownerDocument	= this;
		node.name = name;
		node.nodeName	= name;
		node.localName = name;
		node.specified = true;
		return node;
	},
	createEntityReference :	function(name){
		var node = new EntityReference();
		node.ownerDocument	= this;
		node.nodeName	= name;
		return node;
	},
	createElementNS :	function(namespaceURI,qualifiedName){
		var node = new Element();
		var pl = qualifiedName.split(':');
		var attrs	= node.attributes = new NamedNodeMap();
		node.childNodes = new NodeList();
		node.ownerDocument = this;
		node.nodeName = qualifiedName;
		node.tagName = qualifiedName;
		node.namespaceURI = namespaceURI;
		if(pl.length == 2){
			node.prefix = pl[0];
			node.localName = pl[1];
		}else{
			node.localName = qualifiedName;
		}
		attrs._ownerElement = node;
		return node;
	},
	createAttributeNS :	function(namespaceURI,qualifiedName){
		var node = new Attr();
		var pl = qualifiedName.split(':');
		node.ownerDocument = this;
		node.nodeName = qualifiedName;
		node.name = qualifiedName;
		node.namespaceURI = namespaceURI;
		node.specified = true;
		if(pl.length == 2){
			node.prefix = pl[0];
			node.localName = pl[1];
		}else{
			node.localName = qualifiedName;
		}
		return node;
	}
};
_extends(Document,Node);


function Element() {
	this._nsMap = {};
};
Element.prototype = {
	nodeType : ELEMENT_NODE,
	hasAttribute : function(name){
		return this.getAttributeNode(name)!=null;
	},
	getAttribute : function(name){
		var attr = this.getAttributeNode(name);
		return attr && attr.value || '';
	},
	getAttributeNode : function(name){
		return this.attributes.getNamedItem(name);
	},
	setAttribute : function(name, value){
		var attr = this.ownerDocument.createAttribute(name);
		attr.value = attr.nodeValue = "" + value;
		this.setAttributeNode(attr)
	},
	removeAttribute : function(name){
		var attr = this.getAttributeNode(name)
		attr && this.removeAttributeNode(attr);
	},
	appendChild:function(newChild){
		if(newChild.nodeType === DOCUMENT_FRAGMENT_NODE){
			return this.insertBefore(newChild,null);
		}else{
			return _appendSingleChild(this,newChild);
		}
	},
	setAttributeNode : function(newAttr){
		return this.attributes.setNamedItem(newAttr);
	},
	setAttributeNodeNS : function(newAttr){
		return this.attributes.setNamedItemNS(newAttr);
	},
	removeAttributeNode : function(oldAttr){
		return this.attributes.removeNamedItem(oldAttr.nodeName);
	},
	removeAttributeNS : function(namespaceURI, localName){
		var old = this.getAttributeNodeNS(namespaceURI, localName);
		old && this.removeAttributeNode(old);
	},
	
	hasAttributeNS : function(namespaceURI, localName){
		return this.getAttributeNodeNS(namespaceURI, localName)!=null;
	},
	getAttributeNS : function(namespaceURI, localName){
		var attr = this.getAttributeNodeNS(namespaceURI, localName);
		return attr && attr.value || '';
	},
	setAttributeNS : function(namespaceURI, qualifiedName, value){
		var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);
		attr.value = attr.nodeValue = "" + value;
		this.setAttributeNode(attr)
	},
	getAttributeNodeNS : function(namespaceURI, localName){
		return this.attributes.getNamedItemNS(namespaceURI, localName);
	},
	
	getElementsByTagName : function(tagName){
		return new LiveNodeList(this,function(base){
			var ls = [];
			_visitNode(base,function(node){
				if(node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)){
					ls.push(node);
				}
			});
			return ls;
		});
	},
	getElementsByTagNameNS : function(namespaceURI, localName){
		return new LiveNodeList(this,function(base){
			var ls = [];
			_visitNode(base,function(node){
				if(node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)){
					ls.push(node);
				}
			});
			return ls;
		});
	}
};
Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;
Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;


_extends(Element,Node);
function Attr() {
};
Attr.prototype.nodeType = ATTRIBUTE_NODE;
_extends(Attr,Node);


function CharacterData() {
};
CharacterData.prototype = {
	data : '',
	substringData : function(offset, count) {
		return this.data.substring(offset, offset+count);
	},
	appendData: function(text) {
		text = this.data+text;
		this.nodeValue = this.data = text;
		this.length = text.length;
	},
	insertData: function(offset,text) {
		this.replaceData(offset,0,text);
	
	},
	appendChild:function(newChild){
			throw new Error(ExceptionMessage[3])
		return Node.prototype.appendChild.apply(this,arguments)
	},
	deleteData: function(offset, count) {
		this.replaceData(offset,count,"");
	},
	replaceData: function(offset, count, text) {
		var start = this.data.substring(0,offset);
		var end = this.data.substring(offset+count);
		text = start + text + end;
		this.nodeValue = this.data = text;
		this.length = text.length;
	}
}
_extends(CharacterData,Node);
function Text() {
};
Text.prototype = {
	nodeName : "#text",
	nodeType : TEXT_NODE,
	splitText : function(offset) {
		var text = this.data;
		var newText = text.substring(offset);
		text = text.substring(0, offset);
		this.data = this.nodeValue = text;
		this.length = text.length;
		var newNode = this.ownerDocument.createTextNode(newText);
		if(this.parentNode){
			this.parentNode.insertBefore(newNode, this.nextSibling);
		}
		return newNode;
	}
}
_extends(Text,CharacterData);
function Comment() {
};
Comment.prototype = {
	nodeName : "#comment",
	nodeType : COMMENT_NODE
}
_extends(Comment,CharacterData);

function CDATASection() {
};
CDATASection.prototype = {
	nodeName : "#cdata-section",
	nodeType : CDATA_SECTION_NODE
}
_extends(CDATASection,CharacterData);


function DocumentType() {
};
DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;
_extends(DocumentType,Node);

function Notation() {
};
Notation.prototype.nodeType = NOTATION_NODE;
_extends(Notation,Node);

function Entity() {
};
Entity.prototype.nodeType = ENTITY_NODE;
_extends(Entity,Node);

function EntityReference() {
};
EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;
_extends(EntityReference,Node);

function DocumentFragment() {
};
DocumentFragment.prototype.nodeName =	"#document-fragment";
DocumentFragment.prototype.nodeType =	DOCUMENT_FRAGMENT_NODE;
_extends(DocumentFragment,Node);


function ProcessingInstruction() {
}
ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;
_extends(ProcessingInstruction,Node);
function XMLSerializer(){}
XMLSerializer.prototype.serializeToString = function(node){
	var buf = [];
	serializeToString(node,buf);
	return buf.join('');
}
Node.prototype.toString =function(){
	return XMLSerializer.prototype.serializeToString(this);
}
function serializeToString(node,buf){
	switch(node.nodeType){
	case ELEMENT_NODE:
		var attrs = node.attributes;
		var len = attrs.length;
		var child = node.firstChild;
		var nodeName = node.tagName;
		var isHTML = htmlns === node.namespaceURI
		buf.push('<',nodeName);
		for(var i=0;i<len;i++){
			serializeToString(attrs.item(i),buf,isHTML);
		}
		if(child || isHTML && !/^(?:meta|link|img|br|hr|input|button)$/i.test(nodeName)){
			buf.push('>');
			if(isHTML && /^script$/i.test(nodeName)){
				if(child){
					buf.push(child.data);
				}
			}else{
				while(child){
					serializeToString(child,buf);
					child = child.nextSibling;
				}
			}
			buf.push('</',nodeName,'>');
		}else{
			buf.push('/>');
		}
		return;
	case DOCUMENT_NODE:
	case DOCUMENT_FRAGMENT_NODE:
		var child = node.firstChild;
		while(child){
			serializeToString(child,buf);
			child = child.nextSibling;
		}
		return;
	case ATTRIBUTE_NODE:
		return buf.push(' ',node.name,'="',node.value.replace(/[<&"]/g,_xmlEncoder),'"');
	case TEXT_NODE:
		return buf.push(node.data.replace(/[<&]/g,_xmlEncoder));
	case CDATA_SECTION_NODE:
		return buf.push( '<![CDATA[',node.data,']]>');
	case COMMENT_NODE:
		return buf.push( "<!--",node.data,"-->");
	case DOCUMENT_TYPE_NODE:
		var pubid = node.publicId;
		var sysid = node.systemId;
		buf.push('<!DOCTYPE ',node.name);
		if(pubid){
			buf.push(' PUBLIC "',pubid);
			if (sysid && sysid!='.') {
				buf.push( '" "',sysid);
			}
			buf.push('">');
		}else if(sysid && sysid!='.'){
			buf.push(' SYSTEM "',sysid,'">');
		}else{
			var sub = node.internalSubset;
			if(sub){
				buf.push(" [",sub,"]");
			}
			buf.push(">");
		}
		return;
	case PROCESSING_INSTRUCTION_NODE:
		return buf.push( "<?",node.target," ",node.data,"?>");
	case ENTITY_REFERENCE_NODE:
		return buf.push( '&',node.nodeName,';');
	default:
		buf.push('??',node.nodeName);
	}
}
function importNode(doc,node,deep){
	var node2;
	switch (node.nodeType) {
	case ELEMENT_NODE:
		node2 = node.cloneNode(false);
		node2.ownerDocument = doc;
	case DOCUMENT_FRAGMENT_NODE:
		break;
	case ATTRIBUTE_NODE:
		deep = true;
		break;
	}
	if(!node2){
		node2 = node.cloneNode(false);//false
	}
	node2.ownerDocument = doc;
	node2.parentNode = null;
	if(deep){
		var child = node.firstChild;
		while(child){
			node2.appendChild(importNode(doc,child,deep));
			child = child.nextSibling;
		}
	}
	return node2;
}
function cloneNode(doc,node,deep){
	var node2 = new node.constructor();
	for(var n in node){
		var v = node[n];
		if(typeof v != 'object' ){
			if(v != node2[n]){
				node2[n] = v;
			}
		}
	}
	if(node.childNodes){
		node2.childNodes = new NodeList();
	}
	node2.ownerDocument = doc;
	switch (node2.nodeType) {
	case ELEMENT_NODE:
		var attrs	= node.attributes;
		var attrs2	= node2.attributes = new NamedNodeMap();
		var len = attrs.length
		attrs2._ownerElement = node2;
		for(var i=0;i<len;i++){
			node2.setAttributeNode(cloneNode(doc,attrs.item(i),true));
		}
		break;;
	case ATTRIBUTE_NODE:
		deep = true;
	}
	if(deep){
		var child = node.firstChild;
		while(child){
			node2.appendChild(cloneNode(doc,child,deep));
			child = child.nextSibling;
		}
	}
	return node2;
}

function __set__(object,key,value){
	object[key] = value
}
try{
	if(Object.defineProperty){
		Object.defineProperty(LiveNodeList.prototype,'length',{
			get:function(){
				_updateLiveList(this);
				return this.$$length;
			}
		});
		Object.defineProperty(Node.prototype,'textContent',{
			get:function(){
				return getTextContent(this);
			},
			set:function(data){
				switch(this.nodeType){
				case 1:
				case 11:
					while(this.firstChild){
						this.removeChild(this.firstChild);
					}
					if(data || String(data)){
						this.appendChild(this.ownerDocument.createTextNode(data));
					}
					break;
				default:
					this.data = data;
					this.value = value;
					this.nodeValue = data;
				}
			}
		})
		
		function getTextContent(node){
			switch(node.nodeType){
			case 1:
			case 11:
				var buf = [];
				node = node.firstChild;
				while(node){
					if(node.nodeType!==7 && node.nodeType !==8){
						buf.push(getTextContent(node));
					}
					node = node.nextSibling;
				}
				return buf.join('');
			default:
				return node.nodeValue;
			}
		}
		__set__ = function(object,key,value){
			object['$$'+key] = value
		}
	}
}catch(e){//ie8
}

return DOMImplementation;
});

ace.define("ace/mode/xml/dom-parser",["require","exports","module","ace/mode/xml/sax","ace/mode/xml/dom"], function(require, exports, module) {
	'use strict';

	var XMLReader = require('./sax'),
		DOMImplementation = require('./dom');

function DOMParser(options){
	this.options = options ||{locator:{}};
	
}
DOMParser.prototype.parseFromString = function(source,mimeType){	
	var options = this.options;
	var sax =  new XMLReader();
	var domBuilder = options.domBuilder || new DOMHandler();//contentHandler and LexicalHandler
	var errorHandler = options.errorHandler;
	var locator = options.locator;
	var defaultNSMap = options.xmlns||{};
	var entityMap = {'lt':'<','gt':'>','amp':'&','quot':'"','apos':"'"}
	if(locator){
		domBuilder.setDocumentLocator(locator)
	}
	
	sax.errorHandler = buildErrorHandler(errorHandler,domBuilder,locator);
	sax.domBuilder = options.domBuilder || domBuilder;
	if(/\/x?html?$/.test(mimeType)){
		entityMap.nbsp = '\xa0';
		entityMap.copy = '\xa9';
		defaultNSMap['']= 'http://www.w3.org/1999/xhtml';
	}
	if(source){
		sax.parse(source,defaultNSMap,entityMap);
	}else{
		sax.errorHandler.error("invalid document source");
	}
	return domBuilder.document;
}
function buildErrorHandler(errorImpl,domBuilder,locator){
	if(!errorImpl){
		if(domBuilder instanceof DOMHandler){
			return domBuilder;
		}
		errorImpl = domBuilder ;
	}
	var errorHandler = {}
	var isCallback = errorImpl instanceof Function;
	locator = locator||{}
	function build(key){
		var fn = errorImpl[key];
		if(!fn){
			if(isCallback){
				fn = errorImpl.length == 2?function(msg){errorImpl(key,msg)}:errorImpl;
			}else{
				var i=arguments.length;
				while(--i){
					if(fn = errorImpl[arguments[i]]){
						break;
					}
				}
			}
		}
		errorHandler[key] = fn && function(msg){
			fn(msg+_locator(locator), msg, locator);
		}||function(){};
	}
	build('warning','warn');
	build('error','warn','warning');
	build('fatalError','warn','warning','error');
	return errorHandler;
}
function DOMHandler() {
    this.cdata = false;
}
function position(locator,node){
	node.lineNumber = locator.lineNumber;
	node.columnNumber = locator.columnNumber;
} 
DOMHandler.prototype = {
	startDocument : function() {
    	this.document = new DOMImplementation().createDocument(null, null, null);
    	if (this.locator) {
        	this.document.documentURI = this.locator.systemId;
    	}
	},
	startElement:function(namespaceURI, localName, qName, attrs) {
		var doc = this.document;
	    var el = doc.createElementNS(namespaceURI, qName||localName);
	    var len = attrs.length;
	    appendElement(this, el);
	    this.currentElement = el;
	    
		this.locator && position(this.locator,el)
	    for (var i = 0 ; i < len; i++) {
	        var namespaceURI = attrs.getURI(i);
	        var value = attrs.getValue(i);
	        var qName = attrs.getQName(i);
			var attr = doc.createAttributeNS(namespaceURI, qName);
			if( attr.getOffset){
				position(attr.getOffset(1),attr)
			}
			attr.value = attr.nodeValue = value;
			el.setAttributeNode(attr)
	    }
	},
	endElement:function(namespaceURI, localName, qName) {
		var current = this.currentElement
	    var tagName = current.tagName;
	    this.currentElement = current.parentNode;
	},
	startPrefixMapping:function(prefix, uri) {
	},
	endPrefixMapping:function(prefix) {
	},
	processingInstruction:function(target, data) {
	    var ins = this.document.createProcessingInstruction(target, data);
	    this.locator && position(this.locator,ins)
	    appendElement(this, ins);
	},
	ignorableWhitespace:function(ch, start, length) {
	},
	characters:function(chars, start, length) {
		chars = _toString.apply(this,arguments)
		if(this.currentElement && chars){
			if (this.cdata) {
				var charNode = this.document.createCDATASection(chars);
				this.currentElement.appendChild(charNode);
			} else {
				var charNode = this.document.createTextNode(chars);
				this.currentElement.appendChild(charNode);
			}
			this.locator && position(this.locator,charNode)
		}
	},
	skippedEntity:function(name) {
	},
	endDocument:function() {
		this.document.normalize();
	},
	setDocumentLocator:function (locator) {
	    if(this.locator = locator){// && !('lineNumber' in locator)){
	    	locator.lineNumber = 0;
	    }
	},
	comment:function(chars, start, length) {
		chars = _toString.apply(this,arguments)
	    var comm = this.document.createComment(chars);
	    this.locator && position(this.locator,comm)
	    appendElement(this, comm);
	},
	
	startCDATA:function() {
	    this.cdata = true;
	},
	endCDATA:function() {
	    this.cdata = false;
	},
	
	startDTD:function(name, publicId, systemId) {
		var impl = this.document.implementation;
	    if (impl && impl.createDocumentType) {
	        var dt = impl.createDocumentType(name, publicId, systemId);
	        this.locator && position(this.locator,dt)
	        appendElement(this, dt);
	    }
	},
	warning:function(error) {
		console.warn(error,_locator(this.locator));
	},
	error:function(error) {
		console.error(error,_locator(this.locator));
	},
	fatalError:function(error) {
		console.error(error,_locator(this.locator));
	    throw error;
	}
}
function _locator(l){
	if(l){
		return '\n@'+(l.systemId ||'')+'#[line:'+l.lineNumber+',col:'+l.columnNumber+']'
	}
}
function _toString(chars,start,length){
	if(typeof chars == 'string'){
		return chars.substr(start,length)
	}else{//java sax connect width xmldom on rhino(what about: "? && !(chars instanceof String)")
		if(chars.length >= start+length || start){
			return new java.lang.String(chars,start,length)+'';
		}
		return chars;
	}
}
"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g,function(key){
	DOMHandler.prototype[key] = function(){return null}
})
function appendElement (hander,node) {
    if (!hander.currentElement) {
        hander.document.appendChild(node);
    } else {
        hander.currentElement.appendChild(node);
    }
}//appendChild and setAttributeNS are preformance key

return {
		DOMParser: DOMParser
	 };
});

ace.define("ace/mode/xml_worker",["require","exports","module","ace/lib/oop","ace/lib/lang","ace/worker/mirror","ace/mode/xml/dom-parser"], function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var lang = require("../lib/lang");
var Mirror = require("../worker/mirror").Mirror;
var DOMParser = require("./xml/dom-parser").DOMParser;

var Worker = exports.Worker = function(sender) {
    Mirror.call(this, sender);
    this.setTimeout(400);
    this.context = null;
};

oop.inherits(Worker, Mirror);

(function() {

    this.setOptions = function(options) {
        this.context = options.context;
    };

    this.onUpdate = function() {
        var value = this.doc.getValue();
        if (!value)
            return;
        var parser = new DOMParser();
        var errors = [];
        parser.options.errorHandler = {
            fatalError: function(fullMsg, errorMsg, locator) {
                errors.push({
                    row: locator.lineNumber,
                    column: locator.columnNumber,
                    text: errorMsg,
                    type: "error"
                });
            },
            error: function(fullMsg, errorMsg, locator) {
                errors.push({
                    row: locator.lineNumber,
                    column: locator.columnNumber,
                    text: errorMsg,
                    type: "error"
                });
            },
            warning: function(fullMsg, errorMsg, locator) {
                errors.push({
                    row: locator.lineNumber,
                    column: locator.columnNumber,
                    text: errorMsg,
                    type: "warning"
                });
            }
        };
        
        parser.parseFromString(value);
        this.sender.emit("error", errors);
    };

}).call(Worker.prototype);

});

ace.define("ace/lib/es5-shim",["require","exports","module"], function(require, exports, module) {

function Empty() {}

if (!Function.prototype.bind) {
    Function.prototype.bind = function bind(that) { // .length is 1
        var target = this;
        if (typeof target != "function") {
            throw new TypeError("Function.prototype.bind called on incompatible " + target);
        }
        var args = slice.call(arguments, 1); // for normal call
        var bound = function () {

            if (this instanceof bound) {

                var result = target.apply(
                    this,
                    args.concat(slice.call(arguments))
                );
                if (Object(result) === result) {
                    return result;
                }
                return this;

            } else {
                return target.apply(
                    that,
                    args.concat(slice.call(arguments))
                );

            }

        };
        if(target.prototype) {
            Empty.prototype = target.prototype;
            bound.prototype = new Empty();
            Empty.prototype = null;
        }
        return bound;
    };
}
var call = Function.prototype.call;
var prototypeOfArray = Array.prototype;
var prototypeOfObject = Object.prototype;
var slice = prototypeOfArray.slice;
var _toString = call.bind(prototypeOfObject.toString);
var owns = call.bind(prototypeOfObject.hasOwnProperty);
var defineGetter;
var defineSetter;
var lookupGetter;
var lookupSetter;
var supportsAccessors;
if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
    defineGetter = call.bind(prototypeOfObject.__defineGetter__);
    defineSetter = call.bind(prototypeOfObject.__defineSetter__);
    lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
    lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
}
if ([1,2].splice(0).length != 2) {
    if(function() { // test IE < 9 to splice bug - see issue #138
        function makeArray(l) {
            var a = new Array(l+2);
            a[0] = a[1] = 0;
            return a;
        }
        var array = [], lengthBefore;
        
        array.splice.apply(array, makeArray(20));
        array.splice.apply(array, makeArray(26));

        lengthBefore = array.length; //46
        array.splice(5, 0, "XXX"); // add one element

        lengthBefore + 1 == array.length

        if (lengthBefore + 1 == array.length) {
            return true;// has right splice implementation without bugs
        }
    }()) {//IE 6/7
        var array_splice = Array.prototype.splice;
        Array.prototype.splice = function(start, deleteCount) {
            if (!arguments.length) {
                return [];
            } else {
                return array_splice.apply(this, [
                    start === void 0 ? 0 : start,
                    deleteCount === void 0 ? (this.length - start) : deleteCount
                ].concat(slice.call(arguments, 2)))
            }
        };
    } else {//IE8
        Array.prototype.splice = function(pos, removeCount){
            var length = this.length;
            if (pos > 0) {
                if (pos > length)
                    pos = length;
            } else if (pos == void 0) {
                pos = 0;
            } else if (pos < 0) {
                pos = Math.max(length + pos, 0);
            }

            if (!(pos+removeCount < length))
                removeCount = length - pos;

            var removed = this.slice(pos, pos+removeCount);
            var insert = slice.call(arguments, 2);
            var add = insert.length;            
            if (pos === length) {
                if (add) {
                    this.push.apply(this, insert);
                }
            } else {
                var remove = Math.min(removeCount, length - pos);
                var tailOldPos = pos + remove;
                var tailNewPos = tailOldPos + add - remove;
                var tailCount = length - tailOldPos;
                var lengthAfterRemove = length - remove;

                if (tailNewPos < tailOldPos) { // case A
                    for (var i = 0; i < tailCount; ++i) {
                        this[tailNewPos+i] = this[tailOldPos+i];
                    }
                } else if (tailNewPos > tailOldPos) { // case B
                    for (i = tailCount; i--; ) {
                        this[tailNewPos+i] = this[tailOldPos+i];
                    }
                } // else, add == remove (nothing to do)

                if (add && pos === lengthAfterRemove) {
                    this.length = lengthAfterRemove; // truncate array
                    this.push.apply(this, insert);
                } else {
                    this.length = lengthAfterRemove + add; // reserves space
                    for (i = 0; i < add; ++i) {
                        this[pos+i] = insert[i];
                    }
                }
            }
            return removed;
        };
    }
}
if (!Array.isArray) {
    Array.isArray = function isArray(obj) {
        return _toString(obj) == "[object Array]";
    };
}
var boxedString = Object("a"),
    splitString = boxedString[0] != "a" || !(0 in boxedString);

if (!Array.prototype.forEach) {
    Array.prototype.forEach = function forEach(fun /*, thisp*/) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            thisp = arguments[1],
            i = -1,
            length = self.length >>> 0;
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(); // TODO message
        }

        while (++i < length) {
            if (i in self) {
                fun.call(thisp, self[i], i, object);
            }
        }
    };
}
if (!Array.prototype.map) {
    Array.prototype.map = function map(fun /*, thisp*/) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            length = self.length >>> 0,
            result = Array(length),
            thisp = arguments[1];
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }

        for (var i = 0; i < length; i++) {
            if (i in self)
                result[i] = fun.call(thisp, self[i], i, object);
        }
        return result;
    };
}
if (!Array.prototype.filter) {
    Array.prototype.filter = function filter(fun /*, thisp */) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                    object,
            length = self.length >>> 0,
            result = [],
            value,
            thisp = arguments[1];
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }

        for (var i = 0; i < length; i++) {
            if (i in self) {
                value = self[i];
                if (fun.call(thisp, value, i, object)) {
                    result.push(value);
                }
            }
        }
        return result;
    };
}
if (!Array.prototype.every) {
    Array.prototype.every = function every(fun /*, thisp */) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            length = self.length >>> 0,
            thisp = arguments[1];
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }

        for (var i = 0; i < length; i++) {
            if (i in self && !fun.call(thisp, self[i], i, object)) {
                return false;
            }
        }
        return true;
    };
}
if (!Array.prototype.some) {
    Array.prototype.some = function some(fun /*, thisp */) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            length = self.length >>> 0,
            thisp = arguments[1];
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }

        for (var i = 0; i < length; i++) {
            if (i in self && fun.call(thisp, self[i], i, object)) {
                return true;
            }
        }
        return false;
    };
}
if (!Array.prototype.reduce) {
    Array.prototype.reduce = function reduce(fun /*, initial*/) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            length = self.length >>> 0;
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }
        if (!length && arguments.length == 1) {
            throw new TypeError("reduce of empty array with no initial value");
        }

        var i = 0;
        var result;
        if (arguments.length >= 2) {
            result = arguments[1];
        } else {
            do {
                if (i in self) {
                    result = self[i++];
                    break;
                }
                if (++i >= length) {
                    throw new TypeError("reduce of empty array with no initial value");
                }
            } while (true);
        }

        for (; i < length; i++) {
            if (i in self) {
                result = fun.call(void 0, result, self[i], i, object);
            }
        }

        return result;
    };
}
if (!Array.prototype.reduceRight) {
    Array.prototype.reduceRight = function reduceRight(fun /*, initial*/) {
        var object = toObject(this),
            self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                object,
            length = self.length >>> 0;
        if (_toString(fun) != "[object Function]") {
            throw new TypeError(fun + " is not a function");
        }
        if (!length && arguments.length == 1) {
            throw new TypeError("reduceRight of empty array with no initial value");
        }

        var result, i = length - 1;
        if (arguments.length >= 2) {
            result = arguments[1];
        } else {
            do {
                if (i in self) {
                    result = self[i--];
                    break;
                }
                if (--i < 0) {
                    throw new TypeError("reduceRight of empty array with no initial value");
                }
            } while (true);
        }

        do {
            if (i in this) {
                result = fun.call(void 0, result, self[i], i, object);
            }
        } while (i--);

        return result;
    };
}
if (!Array.prototype.indexOf || ([0, 1].indexOf(1, 2) != -1)) {
    Array.prototype.indexOf = function indexOf(sought /*, fromIndex */ ) {
        var self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                toObject(this),
            length = self.length >>> 0;

        if (!length) {
            return -1;
        }

        var i = 0;
        if (arguments.length > 1) {
            i = toInteger(arguments[1]);
        }
        i = i >= 0 ? i : Math.max(0, length + i);
        for (; i < length; i++) {
            if (i in self && self[i] === sought) {
                return i;
            }
        }
        return -1;
    };
}
if (!Array.prototype.lastIndexOf || ([0, 1].lastIndexOf(0, -3) != -1)) {
    Array.prototype.lastIndexOf = function lastIndexOf(sought /*, fromIndex */) {
        var self = splitString && _toString(this) == "[object String]" ?
                this.split("") :
                toObject(this),
            length = self.length >>> 0;

        if (!length) {
            return -1;
        }
        var i = length - 1;
        if (arguments.length > 1) {
            i = Math.min(i, toInteger(arguments[1]));
        }
        i = i >= 0 ? i : length - Math.abs(i);
        for (; i >= 0; i--) {
            if (i in self && sought === self[i]) {
                return i;
            }
        }
        return -1;
    };
}
if (!Object.getPrototypeOf) {
    Object.getPrototypeOf = function getPrototypeOf(object) {
        return object.__proto__ || (
            object.constructor ?
            object.constructor.prototype :
            prototypeOfObject
        );
    };
}
if (!Object.getOwnPropertyDescriptor) {
    var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a " +
                         "non-object: ";
    Object.getOwnPropertyDescriptor = function getOwnPropertyDescriptor(object, property) {
        if ((typeof object != "object" && typeof object != "function") || object === null)
            throw new TypeError(ERR_NON_OBJECT + object);
        if (!owns(object, property))
            return;

        var descriptor, getter, setter;
        descriptor =  { enumerable: true, configurable: true };
        if (supportsAccessors) {
            var prototype = object.__proto__;
            object.__proto__ = prototypeOfObject;

            var getter = lookupGetter(object, property);
            var setter = lookupSetter(object, property);
            object.__proto__ = prototype;

            if (getter || setter) {
                if (getter) descriptor.get = getter;
                if (setter) descriptor.set = setter;
                return descriptor;
            }
        }
        descriptor.value = object[property];
        return descriptor;
    };
}
if (!Object.getOwnPropertyNames) {
    Object.getOwnPropertyNames = function getOwnPropertyNames(object) {
        return Object.keys(object);
    };
}
if (!Object.create) {
    var createEmpty;
    if (Object.prototype.__proto__ === null) {
        createEmpty = function () {
            return { "__proto__": null };
        };
    } else {
        createEmpty = function () {
            var empty = {};
            for (var i in empty)
                empty[i] = null;
            empty.constructor =
            empty.hasOwnProperty =
            empty.propertyIsEnumerable =
            empty.isPrototypeOf =
            empty.toLocaleString =
            empty.toString =
            empty.valueOf =
            empty.__proto__ = null;
            return empty;
        }
    }

    Object.create = function create(prototype, properties) {
        var object;
        if (prototype === null) {
            object = createEmpty();
        } else {
            if (typeof prototype != "object")
                throw new TypeError("typeof prototype["+(typeof prototype)+"] != 'object'");
            var Type = function () {};
            Type.prototype = prototype;
            object = new Type();
            object.__proto__ = prototype;
        }
        if (properties !== void 0)
            Object.defineProperties(object, properties);
        return object;
    };
}

function doesDefinePropertyWork(object) {
    try {
        Object.defineProperty(object, "sentinel", {});
        return "sentinel" in object;
    } catch (exception) {
    }
}
if (Object.defineProperty) {
    var definePropertyWorksOnObject = doesDefinePropertyWork({});
    var definePropertyWorksOnDom = typeof document == "undefined" ||
        doesDefinePropertyWork(document.createElement("div"));
    if (!definePropertyWorksOnObject || !definePropertyWorksOnDom) {
        var definePropertyFallback = Object.defineProperty;
    }
}

if (!Object.defineProperty || definePropertyFallback) {
    var ERR_NON_OBJECT_DESCRIPTOR = "Property description must be an object: ";
    var ERR_NON_OBJECT_TARGET = "Object.defineProperty called on non-object: "
    var ERR_ACCESSORS_NOT_SUPPORTED = "getters & setters can not be defined " +
                                      "on this javascript engine";

    Object.defineProperty = function defineProperty(object, property, descriptor) {
        if ((typeof object != "object" && typeof object != "function") || object === null)
            throw new TypeError(ERR_NON_OBJECT_TARGET + object);
        if ((typeof descriptor != "object" && typeof descriptor != "function") || descriptor === null)
            throw new TypeError(ERR_NON_OBJECT_DESCRIPTOR + descriptor);
        if (definePropertyFallback) {
            try {
                return definePropertyFallback.call(Object, object, property, descriptor);
            } catch (exception) {
            }
        }
        if (owns(descriptor, "value")) {

            if (supportsAccessors && (lookupGetter(object, property) ||
                                      lookupSetter(object, property)))
            {
                var prototype = object.__proto__;
                object.__proto__ = prototypeOfObject;
                delete object[property];
                object[property] = descriptor.value;
                object.__proto__ = prototype;
            } else {
                object[property] = descriptor.value;
            }
        } else {
            if (!supportsAccessors)
                throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
            if (owns(descriptor, "get"))
                defineGetter(object, property, descriptor.get);
            if (owns(descriptor, "set"))
                defineSetter(object, property, descriptor.set);
        }

        return object;
    };
}
if (!Object.defineProperties) {
    Object.defineProperties = function defineProperties(object, properties) {
        for (var property in properties) {
            if (owns(properties, property))
                Object.defineProperty(object, property, properties[property]);
        }
        return object;
    };
}
if (!Object.seal) {
    Object.seal = function seal(object) {
        return object;
    };
}
if (!Object.freeze) {
    Object.freeze = function freeze(object) {
        return object;
    };
}
try {
    Object.freeze(function () {});
} catch (exception) {
    Object.freeze = (function freeze(freezeObject) {
        return function freeze(object) {
            if (typeof object == "function") {
                return object;
            } else {
                return freezeObject(object);
            }
        };
    })(Object.freeze);
}
if (!Object.preventExtensions) {
    Object.preventExtensions = function preventExtensions(object) {
        return object;
    };
}
if (!Object.isSealed) {
    Object.isSealed = function isSealed(object) {
        return false;
    };
}
if (!Object.isFrozen) {
    Object.isFrozen = function isFrozen(object) {
        return false;
    };
}
if (!Object.isExtensible) {
    Object.isExtensible = function isExtensible(object) {
        if (Object(object) === object) {
            throw new TypeError(); // TODO message
        }
        var name = '';
        while (owns(object, name)) {
            name += '?';
        }
        object[name] = true;
        var returnValue = owns(object, name);
        delete object[name];
        return returnValue;
    };
}
if (!Object.keys) {
    var hasDontEnumBug = true,
        dontEnums = [
            "toString",
            "toLocaleString",
            "valueOf",
            "hasOwnProperty",
            "isPrototypeOf",
            "propertyIsEnumerable",
            "constructor"
        ],
        dontEnumsLength = dontEnums.length;

    for (var key in {"toString": null}) {
        hasDontEnumBug = false;
    }

    Object.keys = function keys(object) {

        if (
            (typeof object != "object" && typeof object != "function") ||
            object === null
        ) {
            throw new TypeError("Object.keys called on a non-object");
        }

        var keys = [];
        for (var name in object) {
            if (owns(object, name)) {
                keys.push(name);
            }
        }

        if (hasDontEnumBug) {
            for (var i = 0, ii = dontEnumsLength; i < ii; i++) {
                var dontEnum = dontEnums[i];
                if (owns(object, dontEnum)) {
                    keys.push(dontEnum);
                }
            }
        }
        return keys;
    };

}
if (!Date.now) {
    Date.now = function now() {
        return new Date().getTime();
    };
}
var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" +
    "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" +
    "\u2029\uFEFF";
if (!String.prototype.trim || ws.trim()) {
    ws = "[" + ws + "]";
    var trimBeginRegexp = new RegExp("^" + ws + ws + "*"),
        trimEndRegexp = new RegExp(ws + ws + "*$");
    String.prototype.trim = function trim() {
        return String(this).replace(trimBeginRegexp, "").replace(trimEndRegexp, "");
    };
}

function toInteger(n) {
    n = +n;
    if (n !== n) { // isNaN
        n = 0;
    } else if (n !== 0 && n !== (1/0) && n !== -(1/0)) {
        n = (n > 0 || -1) * Math.floor(Math.abs(n));
    }
    return n;
}

function isPrimitive(input) {
    var type = typeof input;
    return (
        input === null ||
        type === "undefined" ||
        type === "boolean" ||
        type === "number" ||
        type === "string"
    );
}

function toPrimitive(input) {
    var val, valueOf, toString;
    if (isPrimitive(input)) {
        return input;
    }
    valueOf = input.valueOf;
    if (typeof valueOf === "function") {
        val = valueOf.call(input);
        if (isPrimitive(val)) {
            return val;
        }
    }
    toString = input.toString;
    if (typeof toString === "function") {
        val = toString.call(input);
        if (isPrimitive(val)) {
            return val;
        }
    }
    throw new TypeError();
}
var toObject = function (o) {
    if (o == null) { // this matches both null and undefined
        throw new TypeError("can't convert "+o+" to object");
    }
    return Object(o);
};

});
